Jiang Li, the daughter of the Taifu, was forced to marry Xiao Yan, the Nine Prince, and entered the palace on the same day as his concubine. She became a cold chess piece symbolizing power in Xiao Yan's eyes. Faced with the hypocrisy and frame-up of the concubine and the indifference and favoritism of the prince, Jiang Li abandoned love and sought power, using the ledger as a blade and people's hearts as a tactic. She worked step by step, not only destroying the enemy's forces, but also taking all the royal family's seal and wealth into her hands, and personally supported her legitimate son Xiao Li to ascend to power. In the intertwined love-hate game of imperial power, she transformed from a boudoir who was passively married into a chess player who amazes all living beings, embarking on a calm and ruthless counterattack.